Fixed a bug in genRandPhaseScript.m

Enabling intensity and formant shifts of the same type as the gated
multiple pitch shifts.
Working on formant shift and whole-word shift mode.

	modified:   mcode/AudapterIO.m
	new file:   mcode/expt_config.example.txt
		Added a tracked example version of expt_config.txt

	modified:   mcode/genRandScript.m
		genRandScript can now handle pitch, intensity and/or
		formant shifts.
		Fixed an indexing bug.

	modified:   mcode/gen_multi_pert_pcf.m
		gen_multi_pert_pcf now supports shiftDurs_ms == [Inf]. In
		this case, the ost and pcf files will be set up such that
		the entire supra-threshold voice section will be under
		perturbation.
		In addition, the ost and pcf files support auto-cycling,
		which makes sure (with high, but not 100% probability)
		that all productions of the word in the trial are
		perturbed. This also deals with sporadic supra-threshold
		ambient noise.
		Note that if Inf is used, then the number of shifts in
		each trial (numShifts) must equal 1.

	modified:   mcode/read_parse_expt_config.m

	modified:   mcode/runExperiment.m